PC Engine Longplay  Space Invaders: The Original Game
Space Invaders, no need to explain that...
Producer NPIAudio/Visual sound, color
Many variation are in this compilation.
01:02 there are four different versions of the original arcade space invaders, all have only this one background to play with.
08:24 The versus mode, 2 players only.
14:09 The arcade mode, now with various backgrounds as you finish one level. It has no ending (obviously for space invaders) so it just loops to level 1 after the last level.